Maximum stress intensity factor for a circumferential crack in a finite-length thin-walled cylinder under transient radial temperature distribution

被引:18
|
作者
Meshii, T [1 ]
Watanabe, K [1 ]
机构
[1] Univ Tokyo, Inst Ind Sci, Div 1, Minato Ku, Tokyo 1068558, Japan
关键词
fracture mechanics; stress intensity factor; thermal stress; thin-walled cylinder; circumferential crack; crack arrest;
D O I
10.1016/S0013-7944(99)00013-2
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
Transient stress intensity factor of an axisymmetric circumferential crack in a finite-length, thin-walled and edges rotation-restrained cylinder, which is suddenly cooled inside from uniform temperature distribution was formulated. Then the effects of various structural parameters and heat transfer conditions on the value were studied. The maximum transient stress intensity factor in a thermal cycle showed a tendency to decrease monotonously when crack length was varied to become longer than a specific value. Furthermore, the maximum transient stress intensity factor for an infinite cylinder length was smaller than that for a specific length when cylinder length was varied. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码:23 / 38
页数:16
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